CVE-2026-52779: openproject < 17.3.3, >= 17.4.0, < 17.4.1

CVE-2026-52779. CVSS 3.1 base score 5.4 (MEDIUM, Vendor/CNA). EPSS 0.00312 (percentile 0.22967), scored 24-Oct-2026.

Affected technology

openproject · < 17.3.3, >= 17.4.0, < 17.4.1
opf

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

A user with management permissions in one project can delete public Calendar or Team Planner Queries from another project where they do not have the corresponding management permissions. Vendor/CNA’s CVSS 3.1 assessment (base score 5.4/10) rates confidentiality impact as none; integrity and availability impact as low.

Published 25-Oct-2026 19:52 UTC

CWE: CWE-639, CWE-863
CCR priority: 21.7 /100 (P4)
CVSS 3.1: 5.4 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L · Vendor/CNA
EPSS: 0.00312 · percentile 0.23903 · 2026-10-25
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-25 19:52:47.952465+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-25 19:51:06.643138+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-52779.html